title: [The preliminary period].
authors.forename: E A
authors.initials: EA
authors.lastname: Chernukha
authors.forename: B S
authors.initials: BS
authors.lastname: Malgazhdarova
mesh_terms: D001921:Brain / Q000502:physiology; D005260:Female; D006801:Humans; D007745:Labor Onset / Q000502:physiology; D007744:Obstetric Labor Complications / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000628:therapy; D011247:Pregnancy; D014590:Uterine Contraction / Q000502:physiology
vernacular_title: Preliminarnyĭ period.